Out of curiosity, can anyone explain the attributes overhead as explained in the Abridged Q Language Manual? Does anyone know what the 4*u+1 is? for parted and grouped? (I know the 4byte should be probably 8 bytes after 3.0) example overhead `s#2 2 3...
I'm using the new kdb package which downlaod from Github(https://github.co/KxSystems/kdb), it has the C API interface to convert data into K type. While I write code in Visual Studio and try to compile it, there're error message. Such as: can't recog...
Is there any way to do this? `# looks to always be creating a copy of the original list for `g/`u, whether it's applied on a list reference or value. I wrote a C function to set the list object's u member (x->u) to 0, and from within q called this fu...
Hello Fellow Qbies, I'm attempting to run a wj across a table with a dimension of 1million rows and 30 columns. It works, but it takes too long to run. What are some tips and tricks to dealing with large datasets and windowjoins?
I'm wondering on how to retrieve the key given the value of a dictionary? The way to get value given the key is array[key] - this will output the value, but what if I have the value and am looking to get the key?
EMEA
Tel: +44 (0)28 3025 2242
AMERICAS
Tel: +1 (212) 447 6700
APAC
Tel: +61 (0)2 9236 5700
KX. All Rights Reserved.
KX and kdb+ are registered trademarks of KX Systems, Inc., a subsidiary of FD Technologies plc.
